Motor-gearing.



PATENTED JUNE 2'7, 1905.

G. BOTKIN.

MOTOR GEARING.

APPLICATION FILED AUG. 8, 1904.

3 SHEETSSHEET 1.

Elm 00mm Geozye Bat/ m PATENTED JUNE 27, 1905,

G. BOTKIN.

MOTOR GEARING.

APPLIOATION FILED AUG. 8, 1904.

3 SHEETS-SHEET 2.

w W" O; ($607318 flaw? No. 798,273. PATENTED JUNE 27, 1905.

G. BOTKIN.

MOTOR GEARING.

APPLICATION FILED AUG. 8, 1904.

3 SHEETS-SHEET 3.

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Yatented June 27, 1905.

PATENT OFFICE.

GEORGE BO'IKIN, OF KAHOKA, MISSOURI.

lVlOTOR-GEARING- SPECIFICATION forming part of Letters Patent N 0.793,273, dated June 27, 1905.

Application filed August 8, 1904. Serial No. 219,946.

To all whom it ntay concern:

Be it known that I, GEORGE BOTKIN, a citizen of the United States,residing at Kahoka, in the county of Clark and State of Missouri, haveinvented certain new and useful Improvements in Motor-Gearing; and I dodeclare the following to be a full, clear, and exact description of theinvention, such as will enable others skilled in the art to which itappertains to make and use the same.

My invention relates to improvements in spring, weight, and othermechanical motors for operating churns, ice-cream freezers, and othermachines.

The object of my invention is to improve and simplify the constructionand operation of motors of this character, and thereby render them moredurable and efficient in use and less expensive to manufacture.

With this and other objects in view the invention consists of certainnovel features of construction, combination, and arrangement of parts,as will be hereinafter more fully described, and particularly pointedout in the appended claims.

In the accompanying drawings, Figure 1 is a front elevation of myimproved motor, showing the same applied to a churn. Fig. 2 is a rearelevation of the same. Fig. 3 is a top plan view. Fig. 4. is a sideelevation with parts of the frame broken away and the body of the churnin section to more clearly illustrate the mechanism. Fig. 5 is avertical sectional view taken on the line 5 5 of Fig. 3. Fig. 6 is adetail view of the wabbling camwheel, and Fig. 7 is a detail view of thelower horizontal bar for the dasher-shaft.

Referring to the drawings by numeral, 1 denotes a suitable frame,comprising a base 2 and an upright vertical portion 3, upon one side ofwhich is mounted the frame 4: of a spring-motor. Said frame & comprisesfront and rear plates 5 and 6, which are connected together by bolts orrods 7. Journaled in bearings in the lower portion of the plates 5 and 6is a winding-shaft 8, upon which is secured one end of a spring 9, theother end of which is secured to a circular casing 10, in

which said spring is located. Said casing is l non-revoluble and issecured to the plate 5. Mounted loosely upon said shaft, between theplates 5 and 6, is a gear-wheel 11, which is adapted to be locked torotate with said shaft in one direction by means of a spring-actuatedpawl 12, pivoted upon said wheel and engagingaratchet-wheel13, securedupon said shaft. This pawl-and-ratchet connection of the gearwheel tothe shaft is provided to permit the spring 9 to be wound withoutrotating said wheel. Said gear 11 meshes with the pinion 1 t, securedupon the shaft 15, journaled be tween the plates 5 and 6 and havingfixed to it agear 16, which meshes with the pinion 17, secured upon ashaft 18, journaled in bearings formed in the upper plate 5 and asupplemental armor plate 19. secured to and spaced from the rear of theplate 6. Upon the front portion of said shaft 18 between the plates 5and 6, is a governor 20, (here shown in the form of a fan-plate,)secured transversely upon said shaft and adapted to offer a resistanceto the rotation of said shaft. Secured upon the rear portion of theshaft 18, between the plates 6 and 19, is a gear 21, which meshes with apinion 22, fixed upon a shaft 23, journaled in bearings formed in thefront plate 5 and in the supplemental plate 19.

Fixed upon the shaft 23 between the plates 5 and 6 is a cam-wheel 2%,which has formed in its periphery a continuous groove 25, disposed at anangle to the axis of the shaft 23, as clearly shown in Figs. t and 6 ofthe drawings. Ooacting with said cam-wheel is a projection 26, providedupon the under side of a horizontally-disposed spur gear or tooth wheel27, which is journaled to rotate upon a vertical shaft 28, fixed in across-bar 29, which extends between the plates 5 and 6 at their upperends. Said projection 26 is disposed eccentrically upon said gear andhas upon its lower end an antifriction roller 30, which travels in thecam-groove 25, as shown. The coaction of said projection with saidcamwheel is 'such that when the shaft 23 is rotated the gear 27 will beoscillated, the projection 26 being moved back and forth by said cam.

The gear 27 projects through a slot formed in the frontplate 5 and is inmesh with a pinion 31, secured upon the vertically-disposed shaft 32,which is removably journaled in bearings upon the front of the frame. Asshown, the upper reduced end of the shaft 32 is journaled in astationary bracket-arm 33, and the lower portion of said shaft isjournaled in a hinged bearing34, which comprises a plate 35, screwed orotherwise secured upon the front of the plate 5 and formed with apivoted lug 36, a semicircular bearing 37, and a screw-opening 38. Saidbearing also comprises a swinging cover-plate 39, which has one of itsends pivoted to lug 36 and its other end slotted to receive a set-screw40, which is adapted to enter the said opening 38 to clamp the swingingmember 39 upon the stationary member 35, said member 39 being formed atits center with a semicircular bearing 41, which coacts with saidbearing 47 to receive the shaft between them. Said shaft 32 has securedto it above the bearing 34 a collar 42, which is adapted to preventendwise movement of the shaft in the hearing.

The lower end of the shaft 32 is adapted to be connected to achurn-dasher or any other device which it is desired to oscillate. Asshown in the drawings, I form the lower end of said shaft with a socket43, in which the upperend of a churn-dasher 44 is removably secured bymeans of a set-screw 45. Said dasher extends through an opening in thetop or cover 46 of a churn-body 47, which, as shown, is cylindrical inform and mounted upon the base 2 of the frame 1. Said body may besecured upon said base in any desired manner; but, as shown, the same isseated between a series of vertically-projecting studs 48, provided uponthe upper side of the base. Said dasher has upon its lower inner end aU- shaped plate 49, the arms of which are bent outwardly in oppositedirections and formed with a series of perforations 50, as shown in Fig.4 of the drawings.

In order to stop and start the motor, I provide a brake, which is hereshown in the form of a lever 51, pivoted at one of its ends upon one ofthe bolts or rods 7 and having intermediate its ends a downwardlyprojecting tongue 52, which is adapted to engage the teeth upon thewheel 27 to hold the lattera'gainst movement. Said lever is preferablyin the form of a heavy piece of wire or a metal rod, bent, as clearlyshown in Figs. 3 and 5 of the drawings, a loop or eye 53 being formedintermediate the ends of said lever to engage the upper projecting endof the shaft 28, and the finger or hand loop 54 being provided upon theouter free end of the lever for the purpose of operating it. hen thelever is disengaged from the gear 27, it may be turned to asubstantially vertical position, so as to hang from the support 7 tohold it out of engagement with the teeth of the said gear.

Any suitable winding means may be provided for the spring-shaft 8; but Ipreferably secure upon its rear end a ratchet-wheel 55 and mount looselyupon said shaft adjacent to said ratchet-wheel a hand-lever 56. Upon,said lever is pivoted at 57, intermediate its end, a pawl 58, the smallend 59 of which is adapted to engage the teeth of said ratchetwheel. Thelarge weighted end 60 of said pawl is adapted to hold the other end 59normally out of engagement with said ratchetwheel, and to said end 60 ispivotally connected. an operating-rod 61, which is slidably mounted uponthe lever 58. The outer ends of the lever 58 and the rod 60 are bentangularly, as shown, to form handles by means of which they may bereadily operated. It will be seen that when the rod 61 is drawn upon thepawl 58 will be held in engagement with the ratchet-wheel, so that whenthe lever 58 is rocked or oscillated the shaft 8 will be rotated to windthe coil-spring 9.

The operation and advantages of my invention will be readily understoodfrom the foregoing description, taken in connection with theaccompanying drawings. It will be seen that when the spring is wound upand the brake-lever 51 is disengaged from the wheel 27 the unwinding ofthe spring will rotate the shaft 8, the motion of which through theintermediate gear previously described will be imparted to the shaft 23.rotates, its wabbling cam-wheel 24 will oscillate the gear 27, and thelatter will in turn oscillate the dasher-shaft 32 and the churndasher44. By means of the brake-lever 51 the motor may be started or stopped,as desired. By means of the hinged bearing 34 and the socket connection43 for the dasher the churn may be readily applied to or removed fromthe motor, and the dasher and its shaft may be quickly removed from thechurn and the machine for cleaning or-adj usting them.

While I have shown and described the preferred embodiment of myinvention, it will be understood that I do not wish to be limited to theprecise construction herein set forth, since various changes in theform, proportion, and the minor details of construction may be resortedto Without departing from the principle or sacrificing any of theadvantages of this invention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. In a machine of the class described, a revoluble cam provided with acircumferential cam-slot lying in a plane which is oblique to thecam-axis, a gear mounted for oscillation and having a tappet-studengaging said camslot, and a shaft mounted for oscillation and a pinionthereon engaging said oscillating gear, substantially as described.

2. In a machine of the class described, a revoluble cam provided with acircumferential As said shaft 23 cam-slot lying in a plane which isoblique to the cam-axis, a gear mounted for oscillation and having atappet-stud engaging said camslot, a shaft mounted for oscillation and apinion thereon engaging said oscillating gear, and a brake'bar having atongue to engage the teeth of the oscillating gear to lock the sameagainst movement, substantially as described.

In testimony whereof I have hereunto set 10 my hand in presence of twosubscribing Witnesses.

his GEORGE BOTKIN.

mark

Witnesses:

G. A. TOWNSEND, J. A. SEAMAN.

